Improved splitter released

Congratulations on a much improved version of splitter that was released
today by Gerd Petermann.

The first improvement is that it fixes the annoying failures on large multipolygons
such as lakes and forests and also on long ways such as ferry routes or country borders.

The previous method used by splitter could not guarantee that all features that should affect a tile
but were wholly or partially outside of the tile would be correctly included.
The new version tracks down all these cases and makes sure that they are complete.

Currently you have to supply the --keep-complete=true option to get the new
behaviour, but as the results are so much better this will surely become the
default soon.
It does take a little extra time and more memory with this option, but as the resulting file sizes
are smaller, it takes less time to run mkgmap on them so there is not so much
difference in the overall time taken.

The split is also improved to make the tiles sizes more even. This means both a more
consistent number of points within the same tile and the tiles are more
square with an maximum aspect ratio of 1:4 if possible with the given input file.
More care is taken with tiles that approach the poles or the 180 degree of longitude line.

The o5m format is now supported for both
read and write. The o5m format is somewhat quicker when used as a splitter input file.

There are also loads of bug fixes too!
This is all available in release r263 which
can be obtained as always from the splitter download page
There are many more changes than are mentioned here, so for full details
read the full description [1]

General information on how to use splitter can be found at
the tile splitter page.